Where the roof meets the gutter — the six inches that cause most of the leaks we are called about

The commonest failure: drip edge behind the gutter

On a correctly built eave the drip edge hangs over the back of the gutter, so water leaving the roof is already inside the trough before gravity gets hold of it. On a great many Maryland houses — particularly ones where the gutters were replaced by a different outfit years after the roof — the drip edge ends short, or the gutter was hung high enough that the metal now sits behind the trough instead of over it.

The symptom is specific and recognisable: a stained fascia board, paint peeling in a line rather than in patches, and sometimes a damp patch inside at the top of the wall below. Nobody sees water in the gutter and so nobody suspects the eave. We have been called to a leak in a bedroom ceiling three times this year that turned out to be six inches of missing metal.

The fix is not a roof replacement. It is usually dropping the gutter, adding or extending the drip edge, and rehanging. That is a half-day job on a typical run and it is the single best value repair at the eave.

Fascia, and why rot there is a schedule problem

Fascia is the board the gutter hangs on. Once it is soft, the hangers have nothing to bite and the gutter sags, which kills the pitch, which holds standing water, which rots more fascia. The loop closes quickly and it is why a gutter that pulls away from the house twice in three years is telling you about the wood, not about the brackets.

Replacing fascia means the gutter comes down anyway. So if a run has rot, the sensible order is fascia, then drip edge, then gutter — in one mobilisation rather than three. A gutter company that will rehang on soft wood without saying so is selling you the same job again in two winters.

We check this by hand before quoting a gutter run. A screwdriver tells you more about a fascia board in ten seconds than a photograph does, and it is the reason we would rather look than price off a description over the phone.

Ice damming, which attacks all three at once

Maryland gets exactly the wrong winter for eaves: freeze, thaw, freeze again, repeated. Heat escaping into the attic melts snow on the warm upper roof; the meltwater runs down to the cold overhang, where there is no house underneath to warm it, and refreezes. That ridge of ice holds the next lot of water back, and standing water finds every lap and nail hole that a running sheet of water would have passed straight over.

Because of this, ice damming is not a gutter fault even when the gutter is full of ice. The gutter is a symptom. The cause is upstairs: insulation thin at the eave, bath or kitchen fans ducted into the attic instead of out through the roof, recessed lights leaking warm air, a soffit vent blocked with blown insulation. The National Weather Service Baltimore/Washington office is worth watching in a freeze-thaw week, because the pattern that causes dams is visible in the forecast before it is visible on your roof.

What helps at the eave itself is ice-and-water membrane under the first few courses — a self-sealing underlayment that closes around nails — and keeping the overhang genuinely cold. What does not help is heat cable left on all winter, which melts a channel and does nothing about the water behind it.

Why we quote this as one job

If you ask a roofer about an eave leak you may be told it is the gutters. If you ask a gutter company you may be told it is the roof. Both can be said honestly by people looking at only their half. The eave is one assembly and it has to be read as one.

In practice our sequence at a leaking eave is: look at the fascia with a tool, find out whether drip edge exists and where it sits relative to the trough, check the pitch and the outlets, and only then ask whether the roof field itself is at end of life. Most of the time the answer is a detail repair, not a tear-off — and when it genuinely is a tear-off, the drip edge and the gutter hanging get corrected as part of it rather than left for someone else.

We do roofing and gutters both, which is the only reason we can say that without it being a sales line. If you want the figures before you call, our roof replacement and gutter replacement cost guides give the ranges we actually work to.